654213520031 has 2 divisors, whose sum is σ = 654213520032. Its totient is φ = 654213520030.

The previous prime is 654213520007. The next prime is 654213520067. The reversal of 654213520031 is 130025312456.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654213520031 - 2³⁸ = 379335613087 is a prime.

It is a super-2 number, since 2×654213520031² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 654213520031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654213520931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327106760015 + 327106760016.

It is an arithmetic number, because the mean of its divisors is an integer number (327106760016).

Almost surely, 2^654213520031 is an apocalyptic number.

654213520031 is a deficient number, since it is larger than the sum of its proper divisors (1).

654213520031 is an equidigital number, since it uses as much as digits as its factorization.

654213520031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 654213520031 its reverse (130025312456), we get a palindrome (784238832487).

The spelling of 654213520031 in words is "six hundred fifty-four billion, two hundred thirteen million, five hundred twenty thousand, thirty-one".